Steps to the problem
n 1. Write the net ionic equation for the reaction.1
n 2. Dilute the substances to represent the effect of
changing volume on concentrations
n 3. Allow the limiting reagent to be consumed 100%2
n 4.  Examine what remains:
q Xs H3O+? pH determined from this concentration.3
q Xs OH-? pH=14+log[OH-]
q Xs Weak acid? Write the Ka reaction to find [H3O+]
q Xs Weak Base? Write the Ka reaction to find [OH-]
q Xs Buffer? Use the Henderson-Hasselbalch equation.